Koskamo

ox-mcp

An MCP server for Open-Xchange and standards-based mail platforms that enables agents to read and search email, send and reply to messages, manage server-side Sieve filters, handle CalDAV calendar events and invitations, manage CardDAV contacts, and check free/busy availability across one or many accounts using standard IMAP, SMTP, ManageSieve, CalDAV, and CardDAV protocols.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

ox-mcp logo, by RheopyrinCommunity listingLocal stdioSource reviewed; not executedPublished by Rheopyrin
You need:Authenticate with your email + app password (the same credential DAVx5 uses) or OAuth2/OIDC.
Vendor documentation

What you can do with it

  • Read and search emails via IMAP
  • Send and reply to emails via SMTP
  • Manage CalDAV calendar events and invitations
  • Manage CardDAV contacts and free/busy status

Source and maintenance

Community listingRegistry 0.1.4
mcp-registry: io.github.Rheopyrin/ox-mcp@0.1.4Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@rheopyrin/ox-mcp 0.1.4

npm
@rheopyrin/ox-mcp package definition
{
  "version": "0.1.4",
  "transport": "stdio",
  "identifier": "@rheopyrin/ox-mcp",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "OX_MCP_MAIL_SERVER",
      "description": "IMAP/SMTP/ManageSieve host for the mail section (email_* tools)."
    },
    {
      "name": "OX_MCP_MAIL_USER",
      "description": "Login user (mailbox address) for the mail section."
    },
    {
      "name": "OX_MCP_MAIL_APP_PASSWORD",
      "description": "App password for the mail section (basic auth)."
    },
    {
      "name": "OX_MCP_CALDAV_SERVER",
      "description": "CalDAV host for the calDav section (calendar_* tools)."
    },
    {
      "name": "OX_MCP_CALDAV_USER",
      "description": "Login user for the calDav section."
    },
    {
      "name": "OX_MCP_CALDAV_APP_PASSWORD",
      "description": "App password for the calDav section (servers may scope passwords per protocol)."
    },
    {
      "name": "OX_MCP_CARDDAV_SERVER",
      "description": "CardDAV host for the cardDav section (contact_* tools)."
    },
    {
      "name": "OX_MCP_CARDDAV_USER",
      "description": "Login user for the cardDav section."
    },
    {
      "name": "OX_MCP_CARDDAV_APP_PASSWORD",
      "description": "App password for the cardDav section."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "ox-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rheopyrin/ox-mcp@0.1.4"
      ],
      "env": {
        "OX_MCP_MAIL_SERVER": "<YOUR_OX_MCP_MAIL_SERVER>",
        "OX_MCP_MAIL_USER": "<YOUR_OX_MCP_MAIL_USER>",
        "OX_MCP_MAIL_APP_PASSWORD": "<YOUR_OX_MCP_MAIL_APP_PASSWORD>",
        "OX_MCP_CALDAV_SERVER": "<YOUR_OX_MCP_CALDAV_SERVER>",
        "OX_MCP_CALDAV_USER": "<YOUR_OX_MCP_CALDAV_USER>",
        "OX_MCP_CALDAV_APP_PASSWORD": "<YOUR_OX_MCP_CALDAV_APP_PASSWORD>",
        "OX_MCP_CARDDAV_SERVER": "<YOUR_OX_MCP_CARDDAV_SERVER>",
        "OX_MCP_CARDDAV_USER": "<YOUR_OX_MCP_CARDDAV_USER>",
        "OX_MCP_CARDDAV_APP_PASSWORD": "<YOUR_OX_MCP_CARDDAV_APP_PASSWORD>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "ox-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rheopyrin/ox-mcp@0.1.4"
      ],
      "env": {
        "OX_MCP_MAIL_SERVER": "<YOUR_OX_MCP_MAIL_SERVER>",
        "OX_MCP_MAIL_USER": "<YOUR_OX_MCP_MAIL_USER>",
        "OX_MCP_MAIL_APP_PASSWORD": "<YOUR_OX_MCP_MAIL_APP_PASSWORD>",
        "OX_MCP_CALDAV_SERVER": "<YOUR_OX_MCP_CALDAV_SERVER>",
        "OX_MCP_CALDAV_USER": "<YOUR_OX_MCP_CALDAV_USER>",
        "OX_MCP_CALDAV_APP_PASSWORD": "<YOUR_OX_MCP_CALDAV_APP_PASSWORD>",
        "OX_MCP_CARDDAV_SERVER": "<YOUR_OX_MCP_CARDDAV_SERVER>",
        "OX_MCP_CARDDAV_USER": "<YOUR_OX_MCP_CARDDAV_USER>",
        "OX_MCP_CARDDAV_APP_PASSWORD": "<YOUR_OX_MCP_CARDDAV_APP_PASSWORD>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "ox-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@rheopyrin/ox-mcp@0.1.4"
      ],
      "env": {
        "OX_MCP_MAIL_SERVER": "<YOUR_OX_MCP_MAIL_SERVER>",
        "OX_MCP_MAIL_USER": "<YOUR_OX_MCP_MAIL_USER>",
        "OX_MCP_MAIL_APP_PASSWORD": "<YOUR_OX_MCP_MAIL_APP_PASSWORD>",
        "OX_MCP_CALDAV_SERVER": "<YOUR_OX_MCP_CALDAV_SERVER>",
        "OX_MCP_CALDAV_USER": "<YOUR_OX_MCP_CALDAV_USER>",
        "OX_MCP_CALDAV_APP_PASSWORD": "<YOUR_OX_MCP_CALDAV_APP_PASSWORD>",
        "OX_MCP_CARDDAV_SERVER": "<YOUR_OX_MCP_CARDDAV_SERVER>",
        "OX_MCP_CARDDAV_USER": "<YOUR_OX_MCP_CARDDAV_USER>",
        "OX_MCP_CARDDAV_APP_PASSWORD": "<YOUR_OX_MCP_CARDDAV_APP_PASSWORD>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "ox-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rheopyrin/ox-mcp@0.1.4"
      ],
      "env": {
        "OX_MCP_MAIL_SERVER": "<YOUR_OX_MCP_MAIL_SERVER>",
        "OX_MCP_MAIL_USER": "<YOUR_OX_MCP_MAIL_USER>",
        "OX_MCP_MAIL_APP_PASSWORD": "<YOUR_OX_MCP_MAIL_APP_PASSWORD>",
        "OX_MCP_CALDAV_SERVER": "<YOUR_OX_MCP_CALDAV_SERVER>",
        "OX_MCP_CALDAV_USER": "<YOUR_OX_MCP_CALDAV_USER>",
        "OX_MCP_CALDAV_APP_PASSWORD": "<YOUR_OX_MCP_CALDAV_APP_PASSWORD>",
        "OX_MCP_CARDDAV_SERVER": "<YOUR_OX_MCP_CARDDAV_SERVER>",
        "OX_MCP_CARDDAV_USER": "<YOUR_OX_MCP_CARDDAV_USER>",
        "OX_MCP_CARDDAV_APP_PASSWORD": "<YOUR_OX_MCP_CARDDAV_APP_PASSWORD>"
      }
    }
  }
}

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